Global Patent Index - EP 2306561 A4

EP 2306561 A4 20130313 - SODIUM RECHARGEABLE BATTERY

Title (en)

SODIUM RECHARGEABLE BATTERY

Title (de)

WIEDERAUFLADBARE NATRIUMBATTERIE

Title (fr)

BATTERIE RECHARGEABLE AU SODIUM

Publication

EP 2306561 A4 20130313 (EN)

Application

EP 09803069 A 20090729

Priority

  • JP 2009063839 W 20090729
  • JP 2008195966 A 20080730
  • JP 2009073710 A 20090325

Abstract (en)

[origin: EP2306561A1] Disclosed is a sodium secondary battery. The sodium secondary battery comprises a first electrode and a second electrode comprising a carbonaceous material. The carbonaceous material satisfies one or more requirements selected from the group consisting of requirements 1, 2, 3 and 4. Requirement 1: R value (= ID/IG) obtained by Raman spectroscopic measurement is 1.07 to 3. Requirement 2: A value and à A value obtained by small angle X-ray scattering measurement are -0.5 to 0 and 0 to 0.010, respectively. Requirement 3: for an electrode comprising an electrode mixture obtained by mixing 85 parts by weight of the carbonaceous material with 15 parts by weight of poly(vinylidene fluoride), the carbonaceous material in the electrode after being doped and dedoped with sodium ions is substantially free from pores having a size of not less than 10 nm. Requirement 4: Q 1 value obtained by a calorimetric differential thermal analysis is not more than 800 joules/g.

IPC 8 full level

H01M 4/58 (2010.01); H01M 2/16 (2006.01); H01M 4/133 (2010.01); H01M 4/136 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/054 (2010.01)

CPC (source: EP KR US)

H01M 4/133 (2013.01 - KR); H01M 4/136 (2013.01 - EP KR US); H01M 4/58 (2013.01 - EP KR US); H01M 4/587 (2013.01 - KR); H01M 10/0569 (2013.01 - KR); H01M 4/587 (2013.01 - EP US); H01M 10/0569 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP KR); Y10T 29/49108 (2015.01 - EP US)

Citation (search report)

  • [E] EP 2214235 A1 20100804 - SUMITOMO CHEMICAL CO [JP]
  • [XI] RICARDO ALCÁNTARA ET AL: "Carbon Microspheres Obtained from Resorcinol-Formaldehyde as High-Capacity Electrodes for Sodium-Ion Batteries", ELECTROCHEMICAL AND SOLID-STATE LETTERS, vol. 8, no. 4, 1 January 2005 (2005-01-01), pages A222 - A225, XP055019533, ISSN: 1099-0062, DOI: 10.1149/1.1870612
  • [XI] STEVENS D A ET AL: "The Mechanisms of Lithium and Sodium Insertion in Carbon Materials", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, ECS, vol. 148, no. 8, 26 June 2001 (2001-06-26), pages A803 - A811, XP002254016, ISSN: 0013-4651, DOI: 10.1149/1.1379565
  • [XI] THOMAS P ET AL: "Electrochemical insertion of sodium into hard carbons", ELECTROCHIMICA ACTA, ELSEVIER SCIENCE PUBLISHERS, BARKING, GB, vol. 47, no. 20, 5 August 2002 (2002-08-05), pages 3303 - 3307, XP004373165, ISSN: 0013-4686, DOI: 10.1016/S0013-4686(02)00250-5
  • See references of WO 2010013837A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2306561 A1 20110406; EP 2306561 A4 20130313; CN 102113153 A 20110629; CN 102113153 B 20131120; JP 2010251283 A 20101104; JP 5463772 B2 20140409; KR 20110053953 A 20110524; US 2011135990 A1 20110609; US 9899665 B2 20180220; WO 2010013837 A1 20100204

DOCDB simple family (application)

EP 09803069 A 20090729; CN 200980130201 A 20090729; JP 2009063839 W 20090729; JP 2009169783 A 20090721; KR 20117002214 A 20090729; US 200913056912 A 20090729